MLDBM - store multi-level hash structure in single level tied hash This module, intended primarily for use with DBM packages, can serve as a transparent interface to any TIEHASH package that must be used to store arbitrary perl data, including nested references. It works by converting the values in the hash that are references, to their string representation in perl syntax. When using a DBM database, it is this string that gets stored. WWW: http://search.cpan.org/dist/MLDBM/